utils: Add a comment to variable-mapping?

2020-02-19 23:28:27 +01:00 · 2020-02-19 23:28:27 +01:00 · 5dbdde1610
parent 808516081d
commit 5dbdde1610
1 changed files with 1 additions and 0 deletions
--- a/utils.rkt
+++ b/utils.rkt
@ -19,6 +19,7 @@
 ;;; usage of hash tables mapping symbols to values.  The goal is
 ;;; essentially to avoid having to write explicit hash-ref calls.

+;;; A variable mapping is a hash table mapping symbols to values.
 (define (variable-mapping? dict)
  (and (hash? dict)
       (if (not (hash-empty? dict))